Country star Blake Shelton is bringing his Okie pride to network television this holiday season. Shelton will face off against singers from other genres. The network asked Blake and the others to form their own choirs and compete against each other. Shelton said, “I used to make fun of people in high school that were in the choir and now, here I am, you know, on television smack in the middle of one.” Catch Choirmaster Blake Shelton compete in “Clash of the Choirs” on NBC on 12/17 at 8pm ET.